Viridian may refer to: Viridian, a blue-green pigment The Viridian design movement Viridian, the codename for Microsoft's Hyper-V hypervisor Viridian Group, a Northern Ireland-based energy business Viridian (album), by The Greencards (released in 2007) "Viridian," a song by Between the Buried and Me on their 2007 album Colors Captain Viridian, one of the main characters of the video game VVVVVV Viridian Elementary School, an elementary school in Arlington, Texas Prince Viridian, a character in the book The Letter for the King, its sequel and TV adaptation.